A primitive root; probably to disperse, i.e. (intransitive) disappear -- cease.
H6461. pasas
II. [פָסַס] verb disappear, vanish (si vera lectio, compare Assyrian pasâsu, do away, blot out (especially sins)); —
Qal Perfect3plural מִן מַּסּוּ Psalm 12:2 the faithful have vanished (Che Dr) from (among) . . . men; LagProph. Chald. xivi Gr We Du read אָֽפְסוּ (Isaiah 16:4).